1848 - 1928 (80 years)
| Mary Isabel Plaskett | |
| B: | 1878 |
| Port Jefferson, Suffolk, New York, United States | |
| Robert Mandle Plaskett | |
| B: | 29 Mar 1875 |
| United States | |
| D: | 1935 |
| Thomas Edward Plaskett | |
| B: | 1873 |
| New York, United States | |
| D: | 15 Oct 1931 |
| New York City, Queens, New York, United States | |
|
| Katy A Smith | |
| B: | Jun 1848 |
| Smithtown, Suffolk, New York, United States | |
| D: | 7 Jul 1928 |
| Brookhaven, Suffolk, New York, United States | |
| Isaac Plaskett | |
| B: | 1847 |
| Lorton, Cumberland, England, United Kingdom | |
| D: | 25 Mar 1907 |
| Port Jefferson, Suffolk, New York, United States | |
